diff options
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index c9682c8a1d75..852d97c134df 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -863,7 +863,12 @@ static enum folio_references folio_check_references(struct folio *folio, if (vm_flags & VM_LOCKED) return FOLIOREF_ACTIVATE; - /* rmap lock contention: rotate */ + /* + * There are two cases to consider. + * 1) Rmap lock contention: rotate. + * 2) Skip the non-shared swapbacked folio mapped solely by + * the exiting or OOM-reaped process. + */ if (referenced_ptes == -1) return FOLIOREF_KEEP; |